Pleaseeee I need help urgently in finding a movies name

The movie looked a bit oldies, there was a young man who had like blonde hair he was in an enchanted area sort of he saw a stone that had like a silver key structure inside it he removed it from the stone but nothing happened,he then proceeded to touch the silver stone with his palm then a purple light that has like flowered purple shape emerged.Then the system spoke to him asking him if he would like to assume charge and he agreed. that’s the only part I saw please I will be very happy if anyone can help!Thank you